20011210212011 has 8 divisors (see below), whose sum is σ = 20303322536784. Its totient is φ = 19720312492320.

The previous prime is 20011210212001. The next prime is 20011210212023. The reversal of 20011210212011 is 11021201211002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20011210212011 - 2³⁰ = 20010136470187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20011210212001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 303618080 + ... + 303683981.

It is an arithmetic number, because the mean of its divisors is an integer number (2537915317098).

Almost surely, 2^{20011210212011} is an apocalyptic number.

20011210212011 is a deficient number, since it is larger than the sum of its proper divisors (292112324773).

20011210212011 is an equidigital number, since it uses as much as digits as its factorization.

20011210212011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 607302541.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 20011210212011 its reverse (11021201211002), we get a palindrome (31032411423013).

The spelling of 20011210212011 in words is "twenty trillion, eleven billion, two hundred ten million, two hundred twelve thousand, eleven".